import java.awt.*;
import javax.swing.*;

public class GridLayoutTest
{
  public GridLayoutTest ()
  {
    JFrame frame = new JFrame("GridLayout Test");
    frame.setSize(300,300);
    
    Container content = frame.getContentPane();
    content.setLayout(new GridLayout(2, 2));

    content.add(new JButton("A"));
    content.add(new JButton("B"));
    content.add(new JButton("C"));
    content.add(new JButton("D"));
        
    frame.setVisible(true);
  }
  
  public static void main(String[] args)
  {
    new GridLayoutTest();
  }
}